@charset "UTF-8";

/* 作者：搭客佬
官网：https://www.jmttpro.cn/
*/

:root {
  --paper: #fffaf3;
  --paper-soft: #fff5e9;
  --paper-deep: #f7eadb;
  --ink: #171717;
  --ink-soft: #363636;
  --muted: #6f6a64;
  --line: #ded2c5;
  --orange: #ff6b18;
  --orange-dark: #d94d00;
  --cyan: #77d8e7;
  --white: #ffffff;
  --header-height: 76px;
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: auto;
}

body {
  min-width: 320px;
  margin: 0;
  padding-top: var(--header-height);
  color: var(--ink);
  background: var(--paper);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

a,
button,
summary {
  color: inherit;
  -webkit-tap-highlight-color: transparent;
  transition: none;
}

a {
  text-decoration: none;
}

button,
summary {
  font: inherit;
}

button {
  padding: 0;
  border: 0;
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

p,
h1,
h2,
h3,
ol,
ul,
figure {
  margin-top: 0;
}

p,
ol,
ul,
figure {
  margin-bottom: 0;
}

ol,
ul {
  padding-left: 0;
  list-style: none;
}

.container,
.header-inner,
.footer-inner,
.hero-inner {
  width: min(calc(100% - 40px), var(--container));
  margin-right: auto;
  margin-left: auto;
}

.screen-reader-text {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.icon {
  display: inline-block;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  background-position: center;
  background-repeat: no-repeat;
  background-size: contain;
  vertical-align: middle;
}

.icon-menu {
  background-image: url("../icons/menu.svg");
}

.icon-search {
  background-image: url("../icons/search.svg");
}

.icon-clock {
  background-image: url("../icons/clock.svg");
}

.icon-bookmark {
  background-image: url("../icons/bookmark.svg");
}

.icon-download {
  background-image: url("../icons/download.svg");
}

.icon-send {
  background-image: url("../icons/send.svg");
}

.icon-flame {
  background-image: url("../icons/flame.svg");
}

.icon-chat {
  background-image: url("../icons/chat.svg");
}

.icon-filter {
  background-image: url("../icons/filter.svg");
}

.icon-globe {
  background-image: url("../icons/globe.svg");
}

.icon-top {
  background-image: url("../icons/top.svg");
}

.site-header {
  position: fixed;
  z-index: 1000;
  top: 0;
  right: 0;
  left: 0;
  height: var(--header-height);
  background: rgba(255, 250, 243, 0.98);
  border-bottom: 1px solid var(--ink);
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
}

.brand,
.footer-brand {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 12px;
}

.brand img,
.footer-brand img {
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  object-fit: contain;
  border-radius: 12px;
}

.brand-copy,
.footer-brand > span {
  display: flex;
  min-width: 0;
  flex-direction: column;
  line-height: 1.25;
}

.brand-copy strong,
.footer-brand strong {
  font-size: 20px;
  font-weight: 900;
}

.brand-copy span,
.footer-brand span span {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.site-nav ul,
.footer-nav ul {
  display: flex;
  align-items: center;
}

.site-nav ul {
  gap: 34px;
}

.site-nav a {
  position: relative;
  display: flex;
  height: var(--header-height);
  align-items: center;
  font-size: 14px;
  font-weight: 800;
  white-space: nowrap;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 3px;
  content: "";
  background: transparent;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--orange-dark);
}

.site-nav a.is-active::after {
  background: var(--orange);
}

.mobile-actions {
  display: none;
  align-items: center;
  gap: 10px;
}

.mobile-download {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  padding: 0 15px;
  color: var(--white);
  background: var(--orange);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.menu-toggle {
  display: grid;
  width: 42px;
  height: 42px;
  background: var(--paper);
  border: 1px solid var(--ink);
  place-items: center;
}

.hero {
  border-bottom: 1px solid var(--ink);
}

.hero-inner {
  display: grid;
  min-height: 690px;
  grid-template-columns: minmax(0, 62%) minmax(0, 38%);
}

.hero-copy {
  display: flex;
  min-width: 0;
  padding: 82px 58px 72px 0;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.section-kicker {
  margin-bottom: 13px;
  color: var(--orange-dark);
  font-family: Consolas, "Courier New", monospace;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.17em;
}

.hero h1 {
  max-width: 100%;
  margin-bottom: 8px;
  font-size: clamp(64px, 6vw, 94px);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1.05;
  white-space: nowrap;
}

.hero-tagline {
  margin-bottom: 22px;
  font-size: clamp(28px, 3vw, 43px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.25;
}

.hero-description {
  max-width: 650px;
  margin-bottom: 27px;
  color: var(--ink-soft);
  font-size: 17px;
}

.hero-features {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 30px;
  flex-wrap: wrap;
}

.hero-features > span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 800;
}

.hero-features .icon {
  width: 19px;
  height: 19px;
}

.hero-action {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
}

.primary-link {
  display: inline-flex;
  min-width: 220px;
  min-height: 58px;
  align-items: center;
  justify-content: center;
  gap: 11px;
  padding: 0 26px;
  color: var(--white);
  background: var(--orange);
  border: 1px solid var(--orange);
  font-size: 16px;
  font-weight: 900;
  white-space: nowrap;
}

.primary-link:hover {
  color: var(--orange);
  background: var(--paper);
}

.primary-link .icon,
.download-link .icon {
  filter: brightness(0) invert(1);
}

.age-label {
  display: block;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12px;
}

.hero-device {
  position: relative;
  display: flex;
  min-width: 0;
  align-items: flex-end;
  justify-content: flex-end;
  padding-top: 42px;
  overflow: hidden;
  background: var(--orange);
}

.hero-device::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.16;
  background-image: linear-gradient(rgba(23, 23, 23, 0.5) 1px, transparent 1px), linear-gradient(90deg, rgba(23, 23, 23, 0.5) 1px, transparent 1px);
  background-size: 42px 42px;
}

.hero-dot {
  position: absolute;
  z-index: 1;
  top: 43px;
  left: 35px;
  width: 50px;
  height: 50px;
  background: var(--cyan);
  border-radius: 50%;
}

.issue-number,
.issue-word {
  position: absolute;
  z-index: 1;
  left: 30px;
  color: var(--paper);
  font-family: Georgia, serif;
  font-weight: 900;
}

.issue-number {
  top: 156px;
  font-size: 78px;
  line-height: 1;
}

.issue-word {
  top: 235px;
  font-family: Consolas, monospace;
  font-size: 14px;
  letter-spacing: 0.15em;
}

.phone-shell {
  position: relative;
  z-index: 2;
  width: 300px;
  height: 620px;
  padding: 17px 13px 15px;
  background: #101214;
  border: 2px solid #060708;
  border-radius: 44px 44px 0 0;
  box-shadow: 20px 22px 0 rgba(23, 23, 23, 0.18);
}

.phone-speaker {
  position: absolute;
  z-index: 4;
  top: 17px;
  left: 50%;
  width: 94px;
  height: 24px;
  background: #090a0b;
  border-radius: 0 0 15px 15px;
  transform: translateX(-50%);
}

.phone-screen {
  position: relative;
  display: flex;
  height: 100%;
  overflow: hidden;
  flex-direction: column;
  background: var(--white);
  border-radius: 29px 29px 0 0;
}

.phone-status {
  display: flex;
  min-height: 39px;
  align-items: center;
  justify-content: space-between;
  padding: 0 17px;
  font-size: 12px;
  font-weight: 900;
}

.status-shapes {
  display: flex;
  gap: 4px;
}

.status-shapes b {
  width: 6px;
  height: 6px;
  background: var(--ink);
  border-radius: 50%;
}

.phone-head,
.phone-section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.phone-head {
  padding: 8px 15px 9px;
}

.phone-head strong {
  color: var(--orange);
  font-size: 22px;
  font-weight: 900;
}

.phone-head .icon {
  width: 18px;
  height: 18px;
}

.phone-search {
  display: flex;
  min-height: 38px;
  align-items: center;
  gap: 8px;
  margin: 0 14px 8px;
  padding: 0 13px;
  color: #8c8c8c;
  background: #f1f2f3;
  border-radius: 20px;
  font-size: 12px;
}

.phone-search .icon {
  width: 14px;
  height: 14px;
  opacity: 0.55;
}

.phone-tabs {
  display: grid;
  min-height: 37px;
  align-items: end;
  margin: 0 14px 10px;
  border-bottom: 1px solid #dedede;
  grid-template-columns: repeat(4, 1fr);
}

.phone-tabs span {
  position: relative;
  padding-bottom: 9px;
  text-align: center;
  font-size: 12px;
}

.phone-tabs .is-current {
  color: var(--orange-dark);
  font-weight: 900;
}

.phone-tabs .is-current::after {
  position: absolute;
  right: 7px;
  bottom: -1px;
  left: 7px;
  height: 2px;
  content: "";
  background: var(--orange);
}

.phone-feature-card {
  position: relative;
  display: flex;
  min-height: 111px;
  margin: 0 14px 11px;
  padding: 17px;
  overflow: hidden;
  flex-direction: column;
  justify-content: center;
  color: var(--white);
  background: var(--ink);
}

.phone-feature-card::after {
  position: absolute;
  top: -65px;
  right: -34px;
  width: 145px;
  height: 145px;
  content: "";
  background: var(--orange);
  border: 22px solid rgba(255, 255, 255, 0.22);
  border-radius: 50%;
}

.phone-feature-card span,
.phone-feature-card strong,
.phone-feature-card small {
  position: relative;
  z-index: 1;
}

.phone-feature-card span,
.phone-feature-card small {
  font-size: 12px;
}

.phone-feature-card strong {
  margin: 3px 0;
  font-size: 20px;
}

.phone-section-title {
  padding: 0 14px 7px;
}

.phone-section-title strong {
  font-size: 14px;
}

.phone-section-title span {
  color: var(--muted);
  font-size: 12px;
}

.phone-comics {
  display: grid;
  padding: 0 14px;
  gap: 8px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.phone-comics article {
  min-width: 0;
}

.phone-cover {
  display: flex;
  width: 100%;
  aspect-ratio: 3 / 4;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #f1f1f1;
}

.phone-cover img {
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
}

.phone-comics strong,
.phone-comics small {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.phone-comics strong {
  margin-top: 5px;
  font-size: 12px;
}

.phone-comics small {
  color: var(--muted);
  font-size: 12px;
}

.phone-nav {
  display: grid;
  min-height: 48px;
  align-items: center;
  margin-top: auto;
  border-top: 1px solid #e2e2e2;
  grid-template-columns: repeat(5, 1fr);
}

.phone-nav span {
  color: #777;
  text-align: center;
  font-size: 12px;
}

.phone-nav .is-current {
  color: var(--orange);
  font-weight: 900;
}

.section {
  padding: 94px 0;
}

.section-heading {
  display: grid;
  align-items: end;
  gap: 60px;
  margin-bottom: 48px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--ink);
  grid-template-columns: minmax(0, 1fr) minmax(280px, 470px);
}

.section-heading h2 {
  margin-bottom: 0;
  font-size: clamp(42px, 4vw, 62px);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1.05;
}

.section-heading > p {
  color: var(--muted);
  font-size: 15px;
}

.index-section {
  background: var(--paper);
}

.index-board {
  display: grid;
  gap: 16px;
  grid-template-columns: 190px minmax(0, 1fr);
}

.index-rail {
  display: grid;
  gap: 8px;
}

.index-tab {
  display: flex;
  width: 100%;
  min-height: 64px;
  align-items: center;
  gap: 12px;
  padding: 0 17px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  text-align: left;
  font-size: 14px;
  font-weight: 800;
}

.index-tab:hover,
.index-tab.is-active {
  color: var(--white);
  background: var(--orange);
  border-color: var(--orange);
}

.index-tab:hover .icon,
.index-tab.is-active .icon {
  filter: brightness(0) invert(1);
}

.index-content {
  min-width: 0;
  background: var(--white);
  border: 1px solid var(--line);
}

.index-panel {
  display: none;
  min-height: 280px;
}

.index-panel.is-active {
  display: grid;
  grid-template-columns: 0.95fr 1.2fr 1fr;
}

.search-suggest,
.update-list,
.collect-tags {
  padding: 28px;
}

.update-list,
.collect-tags {
  border-left: 1px solid var(--line);
}

.panel-label {
  margin-bottom: 18px;
  font-size: 14px;
  font-weight: 900;
}

.keyword-list,
.collect-tags > div {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.keyword-list span,
.collect-tags span {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  padding: 0 13px;
  background: var(--paper-soft);
  border: 1px solid var(--line);
  border-radius: 18px;
  font-size: 12px;
}

.update-list li {
  display: grid;
  min-height: 45px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 38px minmax(0, 1fr) auto;
}

.update-list li:last-child {
  border-bottom: 0;
}

.update-list li > span {
  color: var(--orange);
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 900;
}

.update-list strong {
  font-size: 13px;
}

.update-list small {
  color: var(--muted);
  font-size: 12px;
}

.panel-message {
  display: flex;
  min-height: 280px;
  align-items: center;
  justify-content: center;
  padding: 40px;
  flex-direction: column;
  text-align: center;
}

.panel-message strong {
  margin-bottom: 10px;
  font-size: 24px;
}

.panel-message p {
  color: var(--muted);
}

.route-section {
  background: var(--paper-soft);
}

.route-line {
  position: relative;
  display: grid;
  gap: 0;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.route-line::before {
  position: absolute;
  top: 19px;
  right: 0;
  left: 0;
  height: 2px;
  content: "";
  background: var(--orange);
}

.route-line li {
  position: relative;
  min-height: 220px;
  padding: 58px 30px 28px;
  border-right: 1px solid var(--line);
}

.route-line li:first-child {
  border-left: 1px solid var(--line);
}

.route-number {
  position: absolute;
  z-index: 1;
  top: 0;
  left: 28px;
  display: grid;
  width: 40px;
  height: 40px;
  color: var(--white);
  background: var(--orange);
  border-radius: 50%;
  font-size: 12px;
  font-weight: 900;
  place-items: center;
}

.route-line .icon {
  width: 34px;
  height: 34px;
  margin-bottom: 19px;
}

.route-line strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.route-line p {
  color: var(--muted);
  font-size: 13px;
}

.screenshot-section {
  background: var(--ink);
  color: var(--white);
}

.screenshot-section .section-heading {
  border-color: rgba(255, 255, 255, 0.34);
}

.screenshot-section .section-heading > p {
  color: #c9c3bc;
}

.screenshot-section .section-kicker {
  color: var(--orange);
}

.screenshot-grid {
  display: grid;
  width: 100%;
  gap: 16px;
  grid-template-columns: repeat(4, calc((100% - 48px) / 4));
}

.screenshot-grid figure {
  display: flex;
  width: 100%;
  min-width: 0;
  margin: 0;
  overflow: hidden;
  flex-direction: column;
  background: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.42);
}

.screenshot-media {
  display: grid;
  width: 100%;
  aspect-ratio: 9 / 16;
  overflow: hidden;
  background: #f3f3f3;
  place-items: center;
}

.screenshot-media img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
}

.screenshot-grid figcaption {
  display: flex;
  min-height: 74px;
  align-items: center;
  gap: 13px;
  padding: 16px 18px;
  color: var(--ink);
  background: var(--paper);
  border-top: 1px solid var(--ink);
}

.screenshot-grid figcaption span {
  color: var(--orange-dark);
  font-family: Georgia, serif;
  font-size: 18px;
  font-weight: 900;
}

.screenshot-grid figcaption strong {
  font-size: 17px;
}

.help-section {
  background: var(--paper-deep);
}

.faq-list {
  background: var(--white);
  border-top: 1px solid var(--ink);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary,
.official-disclosure summary {
  display: grid;
  min-height: 76px;
  align-items: center;
  gap: 18px;
  padding: 0 24px;
  cursor: pointer;
  list-style: none;
}

.faq-item summary {
  grid-template-columns: 44px minmax(0, 1fr) 24px;
}

.faq-item summary::-webkit-details-marker,
.official-disclosure summary::-webkit-details-marker {
  display: none;
}

.faq-item summary > span {
  color: var(--orange-dark);
  font-family: Consolas, monospace;
  font-size: 12px;
  font-weight: 900;
}

.faq-item summary strong,
.official-disclosure summary strong {
  font-size: 16px;
}

.faq-item summary > i,
.official-disclosure summary > i {
  position: relative;
  display: block;
  width: 20px;
  height: 20px;
}

.faq-item summary > i::before,
.faq-item summary > i::after,
.official-disclosure summary > i::before,
.official-disclosure summary > i::after {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 1px;
  content: "";
  background: var(--ink);
  transform: translate(-50%, -50%);
}

.faq-item summary > i::after,
.official-disclosure summary > i::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item[open] summary > i::after,
.official-disclosure[open] summary > i::after {
  transform: translate(-50%, -50%);
}

.faq-item > p {
  padding: 0 86px 24px;
  color: var(--muted);
  font-size: 14px;
}

.official-disclosure {
  width: 100%;
  margin-top: 24px;
  background: var(--white);
  border: 1px solid var(--ink);
}

.official-disclosure summary {
  grid-template-columns: minmax(0, 1fr) 24px;
}

.official-disclosure summary > span {
  display: flex;
  align-items: center;
  gap: 12px;
}

.official-answer {
  padding: 0 24px 22px 56px;
}

.official-answer a {
  color: var(--orange-dark);
  font-weight: 800;
}

.reviews-section {
  background: var(--paper);
}

.review-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.review-card {
  min-width: 0;
  min-height: 260px;
  padding: 26px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 4px solid var(--orange);
}

.review-card:nth-child(3n + 2) {
  border-top-color: var(--ink);
}

.review-meta {
  display: grid;
  align-items: center;
  gap: 11px;
  margin-bottom: 23px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
  grid-template-columns: 40px minmax(0, 1fr) auto;
}

.avatar {
  display: grid;
  width: 40px;
  height: 40px;
  color: var(--white);
  background: var(--ink);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 900;
  place-items: center;
}

.review-meta strong {
  font-size: 14px;
}

.review-meta time {
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.review-card > p {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.95;
}

.download-section {
  padding: 88px 0;
  background: var(--orange);
}

.download-panel {
  position: relative;
  display: grid;
  min-height: 240px;
  overflow: hidden;
  color: var(--white);
  background: var(--ink);
  border: 1px solid var(--ink);
  grid-template-columns: 170px minmax(0, 1fr) 230px;
}

.download-panel::after {
  position: absolute;
  right: 120px;
  bottom: -170px;
  width: 340px;
  height: 340px;
  content: "";
  opacity: 0.14;
  border: 1px solid var(--white);
  border-radius: 50%;
}

.download-index {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 26px;
  flex-direction: column;
  color: var(--ink);
  background: var(--paper);
  border-right: 1px solid var(--line);
}

.download-index strong {
  color: var(--orange);
  font-family: Georgia, serif;
  font-size: 64px;
  line-height: 1;
}

.download-index span {
  margin-top: 13px;
  font-family: Consolas, monospace;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-align: center;
}

.download-copy {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: center;
  padding: 35px 44px;
  flex-direction: column;
}

.download-copy .section-kicker {
  color: var(--orange);
}

.download-copy h2 {
  margin-bottom: 10px;
  font-size: 34px;
  line-height: 1.2;
  white-space: nowrap;
}

.download-copy > p:last-child {
  max-width: 590px;
  color: #c8c5c1;
  font-size: 14px;
}

.download-link {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  color: var(--ink);
  background: var(--orange);
  border-left: 1px solid var(--orange);
  font-size: 17px;
  font-weight: 900;
  white-space: nowrap;
}

.download-link .icon {
  filter: brightness(0);
}

.download-link:hover {
  background: var(--paper);
}

.site-footer {
  color: var(--white);
  background: var(--ink);
}

.footer-inner {
  padding: 42px 0 28px;
}

.footer-main {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.footer-brand strong {
  color: var(--white);
}

.footer-brand span span {
  color: #aaa49e;
}

.footer-nav ul {
  gap: 26px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.footer-nav a {
  color: #e7e1db;
  font-size: 12px;
}

.footer-nav a:hover {
  color: var(--orange);
}

.footer-divider {
  width: 100%;
  height: 1px;
  margin: 30px 0 22px;
  background: rgba(255, 255, 255, 0.72);
}

.copyright {
  color: #aaa49e;
  text-align: center;
  font-size: 12px;
}

.back-to-top {
  position: fixed;
  z-index: 900;
  right: 24px;
  bottom: 24px;
  display: grid;
  width: 48px;
  height: 48px;
  visibility: hidden;
  opacity: 0;
  background: var(--orange);
  border: 1px solid var(--ink);
  place-items: center;
}

.back-to-top.is-visible {
  visibility: visible;
  opacity: 1;
}

.back-to-top .icon {
  filter: brightness(0) invert(1);
}

@media (max-width: 1100px) {
  .site-nav ul {
    gap: 22px;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 60%) minmax(0, 40%);
  }

  .hero-copy {
    padding-right: 34px;
  }

  .hero h1 {
    font-size: 68px;
  }

  .hero-tagline {
    font-size: 32px;
  }

  .phone-shell {
    width: 274px;
  }

  .issue-number,
  .issue-word {
    left: 18px;
  }

  .review-card {
    padding: 22px;
  }

  .review-meta {
    grid-template-columns: 40px minmax(0, 1fr);
  }

  .review-meta time {
    grid-column: 2;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 66px;
  }

  body {
    padding-top: var(--header-height);
  }

  .site-header {
    height: var(--header-height);
  }

  .brand img {
    width: 42px;
    height: 42px;
    border-radius: 10px;
  }

  .brand-copy strong {
    font-size: 17px;
  }

  .brand-copy span {
    font-size: 12px;
  }

  .mobile-actions {
    display: flex;
  }

  .site-nav {
    position: fixed;
    z-index: 999;
    top: var(--header-height);
    right: 0;
    left: 0;
    display: none;
    max-height: calc(100vh - var(--header-height));
    overflow-y: auto;
    background: var(--paper);
    border-bottom: 1px solid var(--ink);
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    width: min(calc(100% - 40px), var(--container));
    margin: 0 auto;
    padding: 10px 0 18px;
    align-items: stretch;
    gap: 0;
    flex-direction: column;
  }

  .site-nav a {
    height: 50px;
    border-bottom: 1px solid var(--line);
  }

  .site-nav a::after {
    display: none;
  }

  .hero-inner {
    width: 100%;
    min-height: 0;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    align-items: center;
    padding: 60px 20px 50px;
    text-align: center;
  }

  .hero h1 {
    font-size: clamp(50px, 14vw, 78px);
    white-space: normal;
  }

  .hero-tagline {
    font-size: clamp(27px, 7vw, 40px);
  }

  .hero-description {
    max-width: 620px;
  }

  .hero-features {
    justify-content: center;
  }

  .hero-action {
    align-items: center;
  }

  .hero-device {
    min-height: 626px;
    justify-content: center;
    padding: 42px 20px 0;
  }

  .phone-shell {
    height: 584px;
  }

  .issue-number,
  .issue-word {
    left: calc(50% - 185px);
  }

  .hero-dot {
    left: calc(50% - 184px);
  }

  .section {
    padding: 72px 0;
  }

  .section-heading {
    gap: 16px;
    grid-template-columns: 1fr;
  }

  .index-board {
    grid-template-columns: 1fr;
  }

  .index-rail {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .index-tab {
    min-height: 58px;
    justify-content: center;
    padding: 0 8px;
  }

  .index-tab .icon {
    display: none;
  }

  .index-panel.is-active {
    grid-template-columns: 1fr 1fr;
  }

  .collect-tags {
    border-top: 1px solid var(--line);
    border-left: 0;
    grid-column: 1 / -1;
  }

  .route-line {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .route-line::before {
    display: none;
  }

  .route-line li {
    padding-top: 74px;
    border-top: 2px solid var(--orange);
    border-bottom: 1px solid var(--line);
  }

  .route-line li:nth-child(odd) {
    border-left: 1px solid var(--line);
  }

  .screenshot-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .review-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .download-panel {
    grid-template-columns: 140px minmax(0, 1fr);
  }

  .download-link {
    min-height: 76px;
    grid-column: 1 / -1;
    border-top: 1px solid var(--orange);
    border-left: 0;
  }

  .footer-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-nav ul {
    justify-content: flex-start;
  }
}

@media (max-width: 600px) {
  .container,
  .header-inner,
  .footer-inner {
    width: min(calc(100% - 28px), var(--container));
  }

  .mobile-download {
    min-height: 38px;
    padding: 0 12px;
  }

  .menu-toggle {
    width: 40px;
    height: 40px;
  }

  .brand {
    gap: 8px;
  }

  .brand img {
    width: 38px;
    height: 38px;
  }

  .brand-copy strong {
    font-size: 15px;
  }

  .brand-copy span {
    max-width: none;
    overflow: visible;
    text-overflow: clip;
    white-space: nowrap;
  }

  .hero-copy {
    padding: 48px 16px 42px;
  }

  .eyebrow,
  .section-kicker {
    font-size: 12px;
  }

  .hero h1 {
    font-size: 52px;
  }

  .hero-tagline {
    font-size: 28px;
  }

  .hero-description {
    font-size: 14px;
  }

  .hero-features {
    gap: 10px 16px;
  }

  .hero-features > span {
    font-size: 12px;
  }

  .hero-device {
    min-height: 575px;
    padding: 36px 12px 0;
  }

  .phone-shell {
    width: min(280px, calc(100vw - 52px));
    height: 540px;
    padding: 14px 10px 12px;
    border-radius: 38px 38px 0 0;
  }

  .phone-speaker {
    top: 14px;
    width: 80px;
    height: 21px;
  }

  .phone-screen {
    border-radius: 25px 25px 0 0;
  }

  .issue-number {
    top: 145px;
    left: 12px;
    font-size: 52px;
  }

  .issue-word {
    top: 201px;
    left: 14px;
    font-size: 12px;
  }

  .hero-dot {
    top: 24px;
    left: 15px;
    width: 38px;
    height: 38px;
  }

  .phone-feature-card {
    min-height: 94px;
  }

  .phone-feature-card strong {
    font-size: 17px;
  }

  .phone-comics {
    gap: 6px;
  }

  .section {
    padding: 58px 0;
  }

  .section-heading {
    margin-bottom: 30px;
    padding-bottom: 18px;
  }

  .section-heading h2 {
    font-size: 38px;
  }

  .section-heading > p {
    font-size: 13px;
  }

  .index-rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .index-panel.is-active {
    grid-template-columns: 1fr;
  }

  .search-suggest,
  .update-list,
  .collect-tags {
    padding: 22px;
  }

  .update-list,
  .collect-tags {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .collect-tags {
    grid-column: auto;
  }

  .route-line {
    grid-template-columns: 1fr;
  }

  .route-line li,
  .route-line li:nth-child(odd) {
    min-height: 188px;
    border-right: 1px solid var(--line);
    border-left: 1px solid var(--line);
  }

  .screenshot-grid {
    gap: 10px;
  }

  .screenshot-grid figcaption {
    min-height: 62px;
    align-items: flex-start;
    gap: 5px;
    padding: 12px 9px;
    flex-direction: column;
  }

  .screenshot-grid figcaption span,
  .screenshot-grid figcaption strong {
    font-size: 12px;
  }

  .faq-item summary,
  .official-disclosure summary {
    min-height: 68px;
    padding: 0 14px;
    gap: 10px;
  }

  .faq-item summary {
    grid-template-columns: 28px minmax(0, 1fr) 20px;
  }

  .faq-item summary strong,
  .official-disclosure summary strong {
    font-size: 13px;
  }

  .faq-item > p {
    padding: 0 20px 20px 52px;
    font-size: 13px;
  }

  .official-answer {
    padding: 0 14px 18px 46px;
    overflow-wrap: anywhere;
  }

  .review-grid {
    grid-template-columns: 1fr;
  }

  .review-card {
    min-height: 0;
    padding: 20px;
  }

  .review-meta {
    gap: 9px;
    grid-template-columns: 38px minmax(0, 1fr) auto;
  }

  .review-meta time {
    grid-column: auto;
    font-size: 12px;
  }

  .avatar {
    width: 38px;
    height: 38px;
  }

  .review-card > p {
    font-size: 13px;
  }

  .download-section {
    padding: 58px 0;
  }

  .download-panel {
    grid-template-columns: 1fr;
  }

  .download-index {
    min-height: 94px;
    padding: 18px;
    align-items: center;
    justify-content: space-between;
    border-right: 0;
    border-bottom: 1px solid var(--line);
    flex-direction: row;
  }

  .download-index strong {
    font-size: 48px;
  }

  .download-index span {
    margin-top: 0;
    text-align: right;
  }

  .download-copy {
    align-items: center;
    padding: 30px 22px;
    text-align: center;
  }

  .download-copy h2 {
    font-size: 26px;
    white-space: nowrap;
  }

  .download-link {
    min-height: 66px;
  }

  .footer-inner {
    padding-top: 34px;
  }

  .footer-main,
  .footer-brand {
    align-items: center;
  }

  .footer-main {
    text-align: center;
  }

  .footer-nav ul {
    justify-content: center;
    gap: 14px 20px;
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 380px) {
  .container,
  .header-inner,
  .footer-inner {
    width: min(calc(100% - 22px), var(--container));
  }

  .brand-copy strong {
    font-size: 14px;
  }

  .brand-copy span {
    font-size: 12px;
  }

  .mobile-download {
    padding: 0 9px;
  }

  .hero h1 {
    font-size: 46px;
  }

  .hero-tagline {
    font-size: 25px;
  }

  .phone-shell {
    width: 268px;
  }

  .review-meta {
    gap: 7px;
  }

  .review-meta strong {
    font-size: 12px;
  }

  .review-meta time {
    font-size: 12px;
  }
}